2988989 has 4 divisors (see below), whose sum is σ = 3085440. Its totient is φ = 2892540.

The previous prime is 2988961. The next prime is 2989003. The reversal of 2988989 is 9898892.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2988989 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2988989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2988949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48179 + ... + 48240.

It is an arithmetic number, because the mean of its divisors is an integer number (771360).

2^2988989 is an apocalyptic number.

It is an amenable number.

2988989 is a deficient number, since it is larger than the sum of its proper divisors (96451).

2988989 is an equidigital number, since it uses as much as digits as its factorization.

2988989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96450.

The product of its digits is 746496, while the sum is 53.

The square root of 2988989 is about 1728.8692836649. The cubic root of 2988989 is about 144.0482894888.

Subtracting 2988989 from its reverse (9898892), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2988989 in words is "two million, nine hundred eighty-eight thousand, nine hundred eighty-nine".